Record highRecord low2026 daily maximum2026 daily minimum
The band shows the record high and record low for each calendar day at Crystal Falls. The lines show the 2026 daily maximum and minimum. 0 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.
Daily record high and record low at Crystal Falls, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
12.2 C (54.0 F)
-46.1 C (-51.0 F)
n/a
n/a
Feb
14.4 C (57.9 F)
-48.9 C (-56.0 F)
n/a
n/a
Mar
25.0 C (77.0 F)
-45.6 C (-50.1 F)
n/a
n/a
Apr
28.3 C (82.9 F)
-27.2 C (-17.0 F)
n/a
n/a
May
31.7 C (89.1 F)
-10.0 C (14.0 F)
n/a
n/a
Jun
33.3 C (91.9 F)
-3.3 C (26.1 F)
n/a
n/a
Jul
37.8 C (100.0 F)
0.0 C (32.0 F)
n/a
n/a
Aug
36.7 C (98.1 F)
-2.0 C (28.4 F)
n/a
n/a
Sep
34.4 C (93.9 F)
-6.7 C (19.9 F)
n/a
n/a
Oct
26.7 C (80.1 F)
-14.4 C (6.1 F)
n/a
n/a
Nov
20.0 C (68.0 F)
-32.8 C (-27.0 F)
n/a
n/a
Dec
15.0 C (59.0 F)
-43.0 C (-45.4 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Crystal Falls still stand. 1936 holds the most, with 44.
Standing records at Crystal Falls by the year they were set
Year set
Standing records
1922
18
1923
43
1924
31
1925
41
1926
35
1928
18
1929
33
1930
31
1931
24
1932
30
1933
38
1934
33
1935
21
1936
44
1937
21
1938
35
1939
24
1940
20
1941
20
1942
29
1943
18
1944
21
1945
28
1946
41
1947
43
1948
21
1949
22
1950
29
1951
26
1952
8
1953
17
1954
14
1955
7
1956
21
1957
23
1958
16
1959
27
1960
10
1961
14
1962
20
1963
25
1964
26
1965
27
1966
16
1967
16
1968
23
1969
14
1970
18
1971
18
1972
12
1973
22
1974
15
1975
18
1976
31
1977
26
1978
16
1979
26
1980
22
1981
29
1982
26
1983
23
All-Time Record Progression
1 new records
1 all-time records were set at Crystal Falls between 25 February 1965 and 25 February 1965. Each dot is a new record.
When Crystal Falls set new all-time records
Date
Kind
Detail
1965-02-25
Record daily snowfall
Record daily snowfall 38.1 cm (15.0 in)
Wettest Day of Each Month
Jul: 97.3 mm (3.8 in)
The wettest day on record for each calendar month at Crystal Falls. The most was 97.3 mm (3.8 in) on 5 July 1948.
Record daily precipitation for each month at Crystal Falls
Month
Record daily precipitation (mm)
Date
Jan
39.1 mm (1.5 in)
12 January 1932
Feb
38.1 mm (1.5 in)
25 February 1965
Mar
37.1 mm (1.5 in)
25 March 1947
Apr
52.3 mm (2.1 in)
5 April 1929
May
38.1 mm (1.5 in)
5 May 1975
Jun
65.0 mm (2.6 in)
26 June 1930
Jul
97.3 mm (3.8 in)
5 July 1948
Aug
56.1 mm (2.2 in)
16 August 1932
Sep
71.1 mm (2.8 in)
5 September 1931
Oct
68.8 mm (2.7 in)
2 October 1968
Nov
50.8 mm (2.0 in)
17 November 1931
Dec
45.7 mm (1.8 in)
20 December 1957
Period of Record Coverage
1922 to 1983
Complete yearUnder 90 percent of days
61 years of record at Crystal Falls, 1922 to 1983. 4 years have data for under 90 percent of days and are left out of rankings: 1922, 1957, 1958, 1971.
Cooler than the station meanWarmer than the station mean
One stripe for each of 51 complete years at Crystal Falls, 1923 to 1983. Blue stripes are years cooler than the station's own mean of 3.2 C (37.7 F); red stripes are warmer. The coolest year was 1926, at 0.4 C (32.8 F), and the warmest was 1931, at 5.2 C (41.4 F). The strongest colour marks a difference of 2.8 C (5.0 F).
Annual mean temperature at Crystal Falls as warming stripes, 1923 to 1983
Year
Annual mean temperature
Difference from the station mean
1923
1.5 C
-1.66 C
1924
0.9 C
-2.34 C
1925
1.6 C
-1.64 C
1926
0.4 C
-2.76 C
1930
3.9 C
+0.70 C
1931
5.2 C
+2.02 C
1932
4.3 C
+1.11 C
1933
3.6 C
+0.37 C
1934
2.6 C
-0.58 C
1935
2.9 C
-0.31 C
1936
2.6 C
-0.63 C
1937
4.2 C
+1.02 C
1938
4.4 C
+1.20 C
1939
3.4 C
+0.18 C
1940
2.2 C
-1.01 C
1941
3.3 C
+0.07 C
1942
3.4 C
+0.17 C
1943
2.2 C
-1.01 C
1944
3.3 C
+0.13 C
1945
2.9 C
-0.25 C
1946
3.4 C
+0.25 C
1947
3.2 C
-0.02 C
1948
3.7 C
+0.55 C
1949
4.0 C
+0.82 C
1950
2.5 C
-0.74 C
1951
3.0 C
-0.20 C
1955
3.6 C
+0.42 C
1956
2.0 C
-1.15 C
1959
3.4 C
+0.17 C
1960
3.5 C
+0.34 C
1961
4.0 C
+0.84 C
1962
3.3 C
+0.07 C
1963
2.9 C
-0.26 C
1964
4.1 C
+0.90 C
1965
3.0 C
-0.24 C
1966
3.8 C
+0.56 C
1967
3.0 C
-0.19 C
1968
3.5 C
+0.29 C
1969
3.4 C
+0.22 C
1970
2.8 C
-0.41 C
1973
4.5 C
+1.35 C
1974
3.3 C
+0.14 C
1975
4.2 C
+0.99 C
1976
2.7 C
-0.52 C
1977
4.0 C
+0.85 C
1978
2.7 C
-0.47 C
1979
3.4 C
+0.18 C
1980
2.5 C
-0.74 C
1981
4.3 C
+1.06 C
1982
2.8 C
-0.40 C
1983
3.7 C
+0.55 C
The annual mean temperature here has risen by 0.15 C (0.01 to 0.29) per decade over 1923 to 1983. In Fahrenheit: 0.26 F (0.01 to 0.51) per decade. The slope is a straight line fitted to 51 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Crystal Falls
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
0.15 C (0.01 to 0.29) per decade
0.26 F (0.01 to 0.51) per decade
1923 to 1983
51
Rise
Mean daily maximum
0.1 C (-0.1 to 0.3) per decade
0.2 F (-0.2 to 0.5) per decade
1923 to 1983
51
Not clearly different from zero
Mean daily minimum
0.2 C (0.1 to 0.4) per decade
0.4 F (0.1 to 0.6) per decade
1923 to 1983
51
Rise
A year is complete when all 12 months have at least 20 days of both daily maximum and daily minimum readings. The annual mean is the mean of the monthly means. The trend describes this one station over this period; it does not say what caused the change.
Extremes by Year
1922 to 1983
Yearly extremes at Crystal Falls: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
37.8 C (100.0 F)
1936
31.7 C (89.1 F)
61
Coldest night (TNn)
-48.9 C (-56.0 F)
1934
-41.1 C (-42.0 F)
61
Wettest day (Rx1day)
97.3 mm (3.8 in)
1948
42.2 mm (1.7 in)
61
Wettest five days (Rx5day)
117.9 mm (4.6 in)
1972
67.3 mm (2.6 in)
61
Longest dry spell (CDD)
34 days
1958
15 days
61
Hottest day (TXx)
The hottest day of the year at Crystal Falls, 1922 to 1983. The record is 37.8 C (100.0 F) in 1936, marked on the chart; the median year is 31.7 C (89.1 F).
Hottest day (TXx) at Crystal Falls by year
Year
Hottest day (TXx)
1922
31.7 C (89.1 F)
1923
30.0 C (86.0 F)
1924
26.1 C (79.0 F)
1925
30.0 C (86.0 F)
1926
27.2 C (81.0 F)
1928
30.0 C (86.0 F)
1929
31.1 C (88.0 F)
1930
31.1 C (88.0 F)
1931
36.1 C (97.0 F)
1932
31.1 C (88.0 F)
1933
32.8 C (91.0 F)
1934
31.7 C (89.1 F)
1935
33.9 C (93.0 F)
1936
37.8 C (100.0 F)
1937
32.2 C (90.0 F)
1938
34.4 C (93.9 F)
1939
33.9 C (93.0 F)
1940
31.1 C (88.0 F)
1941
32.2 C (90.0 F)
1942
31.1 C (88.0 F)
1943
33.9 C (93.0 F)
1944
33.3 C (91.9 F)
1945
32.8 C (91.0 F)
1946
32.2 C (90.0 F)
1947
33.9 C (93.0 F)
1948
36.7 C (98.1 F)
1949
32.8 C (91.0 F)
1950
30.6 C (87.1 F)
1951
30.6 C (87.1 F)
1952
32.8 C (91.0 F)
1953
34.4 C (93.9 F)
1954
28.9 C (84.0 F)
1955
33.9 C (93.0 F)
1956
31.7 C (89.1 F)
1957
31.1 C (88.0 F)
1958
28.9 C (84.0 F)
1959
31.1 C (88.0 F)
1960
29.4 C (84.9 F)
1961
28.9 C (84.0 F)
1962
31.7 C (89.1 F)
1963
33.3 C (91.9 F)
1964
33.3 C (91.9 F)
1965
29.4 C (84.9 F)
1966
35.0 C (95.0 F)
1967
30.6 C (87.1 F)
1968
31.7 C (89.1 F)
1969
30.6 C (87.1 F)
1970
31.7 C (89.1 F)
1971
32.2 C (90.0 F)
1972
30.0 C (86.0 F)
1973
31.7 C (89.1 F)
1974
30.6 C (87.1 F)
1975
35.0 C (95.0 F)
1976
31.7 C (89.1 F)
1977
32.8 C (91.0 F)
1978
32.0 C (89.6 F)
1979
31.0 C (87.8 F)
1980
31.5 C (88.7 F)
1981
33.0 C (91.4 F)
1982
31.0 C (87.8 F)
1983
35.0 C (95.0 F)
Coldest night (TNn)
The coldest night of the year at Crystal Falls, 1922 to 1983. The record is -48.9 C (-56.0 F) in 1934, marked on the chart; the median year is -41.1 C (-42.0 F).
Coldest night (TNn) at Crystal Falls by year
Year
Coldest night (TNn)
1922
-30.0 C (-22.0 F)
1923
-42.8 C (-45.0 F)
1924
-41.1 C (-42.0 F)
1925
-37.2 C (-35.0 F)
1926
-38.3 C (-36.9 F)
1928
-42.8 C (-45.0 F)
1929
-41.1 C (-42.0 F)
1930
-42.2 C (-44.0 F)
1931
-38.9 C (-38.0 F)
1932
-36.7 C (-34.1 F)
1933
-38.9 C (-38.0 F)
1934
-48.9 C (-56.0 F)
1935
-42.8 C (-45.0 F)
1936
-40.0 C (-40.0 F)
1937
-38.9 C (-38.0 F)
1938
-40.6 C (-41.1 F)
1939
-42.8 C (-45.0 F)
1940
-35.6 C (-32.1 F)
1941
-40.0 C (-40.0 F)
1942
-46.1 C (-51.0 F)
1943
-45.6 C (-50.1 F)
1944
-38.9 C (-38.0 F)
1945
-44.4 C (-47.9 F)
1946
-41.7 C (-43.1 F)
1947
-41.1 C (-42.0 F)
1948
-41.1 C (-42.0 F)
1949
-35.0 C (-31.0 F)
1950
-45.6 C (-50.1 F)
1951
-46.7 C (-52.1 F)
1952
-41.7 C (-43.1 F)
1953
-37.2 C (-35.0 F)
1954
-25.0 C (-13.0 F)
1955
-38.9 C (-38.0 F)
1956
-33.9 C (-29.0 F)
1957
-42.8 C (-45.0 F)
1958
-41.1 C (-42.0 F)
1959
-41.1 C (-42.0 F)
1960
-41.7 C (-43.1 F)
1961
-37.2 C (-35.0 F)
1962
-43.3 C (-45.9 F)
1963
-40.6 C (-41.1 F)
1964
-39.4 C (-38.9 F)
1965
-45.0 C (-49.0 F)
1966
-37.8 C (-36.0 F)
1967
-44.4 C (-47.9 F)
1968
-45.0 C (-49.0 F)
1969
-36.7 C (-34.1 F)
1970
-40.6 C (-41.1 F)
1971
-42.8 C (-45.0 F)
1972
-40.6 C (-41.1 F)
1973
-41.1 C (-42.0 F)
1974
-37.2 C (-35.0 F)
1975
-40.6 C (-41.1 F)
1976
-43.9 C (-47.0 F)
1977
-37.8 C (-36.0 F)
1978
-39.5 C (-39.1 F)
1979
-42.0 C (-43.6 F)
1980
-43.0 C (-45.4 F)
1981
-44.0 C (-47.2 F)
1982
-43.0 C (-45.4 F)
1983
-42.0 C (-43.6 F)
Wettest day (Rx1day)
The wettest day of the year at Crystal Falls, 1922 to 1983. The record is 97.3 mm (3.8 in) in 1948, marked on the chart; the median year is 42.2 mm (1.7 in).
Wettest day (Rx1day) at Crystal Falls by year
Year
Wettest day (Rx1day)
1922
40.4 mm (1.6 in)
1923
35.6 mm (1.4 in)
1924
35.8 mm (1.4 in)
1925
42.7 mm (1.7 in)
1926
34.3 mm (1.4 in)
1928
57.9 mm (2.3 in)
1929
52.3 mm (2.1 in)
1930
65.0 mm (2.6 in)
1931
71.1 mm (2.8 in)
1932
56.1 mm (2.2 in)
1933
31.8 mm (1.3 in)
1934
42.7 mm (1.7 in)
1935
33.0 mm (1.3 in)
1936
29.5 mm (1.2 in)
1937
38.1 mm (1.5 in)
1938
42.2 mm (1.7 in)
1939
39.9 mm (1.6 in)
1940
26.7 mm (1.1 in)
1941
42.2 mm (1.7 in)
1942
34.5 mm (1.4 in)
1943
43.7 mm (1.7 in)
1944
33.8 mm (1.3 in)
1945
53.8 mm (2.1 in)
1946
49.0 mm (1.9 in)
1947
48.8 mm (1.9 in)
1948
97.3 mm (3.8 in)
1949
52.1 mm (2.1 in)
1950
24.6 mm (1.0 in)
1951
40.6 mm (1.6 in)
1952
34.3 mm (1.4 in)
1953
31.8 mm (1.3 in)
1954
55.9 mm (2.2 in)
1955
77.5 mm (3.1 in)
1956
46.7 mm (1.8 in)
1957
49.0 mm (1.9 in)
1958
34.3 mm (1.4 in)
1959
56.1 mm (2.2 in)
1960
48.8 mm (1.9 in)
1961
40.1 mm (1.6 in)
1962
33.8 mm (1.3 in)
1963
48.3 mm (1.9 in)
1964
25.4 mm (1.0 in)
1965
38.1 mm (1.5 in)
1966
29.2 mm (1.1 in)
1967
46.7 mm (1.8 in)
1968
68.8 mm (2.7 in)
1969
49.8 mm (2.0 in)
1970
42.7 mm (1.7 in)
1971
31.0 mm (1.2 in)
1972
47.8 mm (1.9 in)
1973
31.2 mm (1.2 in)
1974
41.9 mm (1.6 in)
1975
38.1 mm (1.5 in)
1976
34.5 mm (1.4 in)
1977
74.9 mm (2.9 in)
1978
59.2 mm (2.3 in)
1979
49.8 mm (2.0 in)
1980
46.6 mm (1.8 in)
1981
29.4 mm (1.2 in)
1982
35.8 mm (1.4 in)
1983
57.0 mm (2.2 in)
Wettest five days (Rx5day)
The wettest five days of the year at Crystal Falls, 1922 to 1983. The record is 117.9 mm (4.6 in) in 1972, marked on the chart; the median year is 67.3 mm (2.6 in).
Wettest five days (Rx5day) at Crystal Falls by year
Year
Wettest five days (Rx5day)
1922
53.4 mm (2.1 in)
1923
52.1 mm (2.1 in)
1924
65.0 mm (2.6 in)
1925
56.9 mm (2.2 in)
1926
89.6 mm (3.5 in)
1928
111.6 mm (4.4 in)
1929
103.3 mm (4.1 in)
1930
106.5 mm (4.2 in)
1931
104.6 mm (4.1 in)
1932
75.4 mm (3.0 in)
1933
48.2 mm (1.9 in)
1934
61.3 mm (2.4 in)
1935
75.2 mm (3.0 in)
1936
58.5 mm (2.3 in)
1937
67.3 mm (2.6 in)
1938
62.7 mm (2.5 in)
1939
64.6 mm (2.5 in)
1940
63.7 mm (2.5 in)
1941
66.9 mm (2.6 in)
1942
61.2 mm (2.4 in)
1943
71.9 mm (2.8 in)
1944
53.3 mm (2.1 in)
1945
75.7 mm (3.0 in)
1946
52.8 mm (2.1 in)
1947
93.6 mm (3.7 in)
1948
105.9 mm (4.2 in)
1949
56.6 mm (2.2 in)
1950
46.3 mm (1.8 in)
1951
82.6 mm (3.3 in)
1952
89.1 mm (3.5 in)
1953
46.3 mm (1.8 in)
1954
84.3 mm (3.3 in)
1955
78.5 mm (3.1 in)
1956
68.2 mm (2.7 in)
1957
103.9 mm (4.1 in)
1958
65.0 mm (2.6 in)
1959
106.1 mm (4.2 in)
1960
54.9 mm (2.2 in)
1961
68.5 mm (2.7 in)
1962
45.0 mm (1.8 in)
1963
68.4 mm (2.7 in)
1964
44.5 mm (1.8 in)
1965
80.0 mm (3.1 in)
1966
43.2 mm (1.7 in)
1967
69.7 mm (2.7 in)
1968
80.8 mm (3.2 in)
1969
63.8 mm (2.5 in)
1970
70.4 mm (2.8 in)
1971
59.0 mm (2.3 in)
1972
117.9 mm (4.6 in)
1973
45.4 mm (1.8 in)
1974
69.6 mm (2.7 in)
1975
62.0 mm (2.4 in)
1976
63.2 mm (2.5 in)
1977
78.7 mm (3.1 in)
1978
67.8 mm (2.7 in)
1979
66.4 mm (2.6 in)
1980
104.6 mm (4.1 in)
1981
55.9 mm (2.2 in)
1982
64.5 mm (2.5 in)
1983
92.6 mm (3.6 in)
Longest dry spell (CDD)
The longest dry spell of the year at Crystal Falls, 1922 to 1983. The record is 34 days in 1958, marked on the chart; the median year is 15 days.
Longest dry spell (CDD) at Crystal Falls by year
Year
Longest dry spell (CDD)
1922
24 days
1923
16 days
1924
21 days
1925
16 days
1926
15 days
1928
10 days
1929
18 days
1930
12 days
1931
14 days
1932
13 days
1933
15 days
1934
10 days
1935
16 days
1936
11 days
1937
17 days
1938
12 days
1939
19 days
1940
15 days
1941
18 days
1942
15 days
1943
12 days
1944
21 days
1945
14 days
1946
12 days
1947
20 days
1948
18 days
1949
13 days
1950
15 days
1951
11 days
1952
19 days
1953
14 days
1954
15 days
1955
10 days
1956
17 days
1957
16 days
1958
34 days
1959
11 days
1960
12 days
1961
27 days
1962
11 days
1963
16 days
1964
13 days
1965
17 days
1966
14 days
1967
21 days
1968
12 days
1969
22 days
1970
15 days
1971
16 days
1972
14 days
1973
11 days
1974
14 days
1975
14 days
1976
16 days
1977
18 days
1978
22 days
1979
12 days
1980
11 days
1981
12 days
1982
11 days
1983
11 days
Each chart shows one value per year; the dot marks the record year. TXx is the hottest daily maximum, TNn the coldest daily minimum, Rx1day and Rx5day the largest one-day and five-day rain totals, and CDD the longest run of days with less than 1 mm of rain. A year with missing days can understate an extreme.
Frost Dates and Growing Season
51 years with a frost
Across 51 years with a frost, the median last spring frost at Crystal Falls falls on 3 June and the median first autumn frost on 9 September, which leaves a median of 98 days between them.
Fitted over all years, the growing season changes by +4.0 days per decade at this station.
Frost dates and growing season at Crystal Falls
Measure
Median, all years
Earliest period
Recent period (1947 to 1983)
Recent against earliest
Fitted trend
Last spring frost
3 June
n/a
3 June
n/a
-1.4 days per decade
First autumn frost
9 September
n/a
10 September
n/a
+2.6 days per decade
Growing days
98 days
n/a
102 days
n/a
+4.0 days per decade
A frost day is a day with a daily minimum at or below 0 C (32 F). The last spring frost and the first autumn frost are the last and first such days of the cold season, and growing days are the days between them. A negative trend for the last spring frost means it comes earlier.
Rainfall Return Levels
60 years, 1923 to 1983
A day with at least 42.0 mm (1.7 in) of rain is expected about once in 2 years. A day with at least 92.9 mm (3.7 in) of rain is expected about once in 100 years.
Rainfall return levels at Crystal Falls: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
42.0 mm (1.7 in)
5 years
54.3 mm (2.1 in)
10 years
63.0 mm (2.5 in)
25 years
74.5 mm (2.9 in)
50 years
83.5 mm (3.3 in)
100 years
92.9 mm (3.7 in)
Longer than the 60 years of record
The levels come from a generalised extreme value (GEV) distribution fitted by L-moments to the wettest-day total of each year, 60 years of values from 1923 to 1983.
A return level is an estimate. It is least reliable for the long periods, 50 and 100 years, and for any period longer than the record behind the fit, where the fit has to reach past the largest day actually observed. It is not a forecast.
The largest wettest-day totals in the fit: 97.3 mm (3.8 in) in 1948; 77.5 mm (3.1 in) in 1955; 74.9 mm (2.9 in) in 1977.
Station Changes
1 suspected
One change was suspected in the annual mean temperature of Crystal Falls, at 1959. Each is measured against neighbouring stations.
Relative to 5 neighbouring stations, the station's annual mean temperature from 1959 ran 0.4 C (0.7 F) higher than in the years before (likely change).
Suspected changes in the annual mean temperature at Crystal Falls, against neighbouring stations
Year
Shift (C)
Shift (F)
Strength
Neighbours
1959
+0.4
+0.7
likely
5
Possible change at the station (a move, a new instrument or a new site); the record is kept as measured. A "likely" change has a larger test statistic than a "possible" one. Neither says why the station differs from its neighbours. How changes are found, and the largest ones.
Download the Data
Data for Crystal Falls standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Crystal Falls threshold days by year: CSV or JSON. Field meanings are on the data page.
Source: NOAA National Centers for Environmental Information, Global Historical Climatology Network Daily (GHCN-Daily). Records are computed by World Extreme Weather Monitor and are not official NOAA products. (US Government open data (NOAA NCEI)) Data as of 2026-10-16 (16 October 2026). Records are computed by this site and are not official.